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{No Model.)

0. SIEGORTNER.

' PLOW. No. 319,031. Patented June 2, 1885.

Witnesses: I Inventor WW At'ddrney llnirnn STATES Parana" Orricii.

CONRAD SIEGORTNER, OF HAMILTON,

OHIO.

PLOW.

FDPEGIPICATION forming part of Letters Patent No. 319,031, dated June 2, 1885.

Application filed April 20, 1885. (No model.)

To all whom it may concern:

Be it known that I, CONRAD Srnednrnnn, of Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in Plows, of which the following is a specification.

This invention relates to coupling devices for double plows adapted for the cultivation of corn, &C'.

The invention will be readily understood from the following description, taken in connection with the accompanying drawings, in which Figure 1 is a perspective view of a double plow fitted with my coupling device; Fig. 2, a plan of the clevis and forward end of the draft-rods; Fig. 3, a side view of the clevis and front end of plow-beams; Fig. 4, a View of the front end of one of the plow-beams, with a portion of the clevis in vertical section; and Fig. 5, a dissected perspective view of the device for attaching the rear shackle-bar to the braces of the plows.

In the drawings, A indicates the beams of the two plows, one plow being right-hand, the other left-hand; B, the usual brace, reaching from mold-board to handle; O, the shackle-bar, reaching from brace to brace; D, a disk pro vided with a boss and seated against its appropriate brace B; E, a jawed casting whose back fits freely upon the boss referred to, and which supports a vertical pin adapted to pass through ahole in the proper end of the shacklebar; F, a bolt passing through the jaw-piece E, the disk D, and the brace B.

The bolt holds the j aw-piece properly to the brace, but permits it to swivel as the two plows take different vertical positions. The pin of the jaw-piece is put into the proper hole'of the shackle-bar to produce the proper distance between the plows, and the shacklebar pivots upon this pin as one plow advances a trifle with reference to the other. The shackle-bar is connected in this manner at each of its ends to the braces B.

G indicates a clevis-plate, reaching across from beam to beam; H, slots through the ends of the clevis; l, a hook-bolt, provided with a bllllmb'llllt, in the end of each plow-beam, the hook of the bolt engaging such of the slots H as the spacing ofthe plows require; J, a bolt for the usual double-tree, supported in the forward projection of .the clevisplate; K, a V-shaped double hook, whose forward end engages the bolt J, and whose rear end is prevented from falling by terminal hooks engaging loosely bolt by which the rear end of each draft-rod is connected to its beam.

The hook-bolts I serve, simply, to sustain the clevis-plate and prevent its falling, the plate being at liberty to play back and forth with reference to these hook-bolts, and the slots of the plate enable the distance between the plows to be adjusted to suit the work in hand.

The double-tree pivots upon the bolt J, and exerts the draft through the hook K and the convergent draft-rods L, the draft-lines being thus from the two bolting-points M to the bolt 3.

The clevis maintains the proper distance between the forward ends of the plow-beams, and permits the proper variation in the relative advance of the two plows, the shacklebar O readily permitting this motion. The lagging of one horse of the team has thus no tendency to produce a lagging of one of the plows.

I claim as my invention- 1. The combination of two plows, a shackle bar connecting them at the rear, as described, a clevis-plate provided with slots at its ends, bolts loosely connecting the clevis-plateto the forward ends of the plow-beams, a bolt at the forward end of the clevis-plate for the double-tree, and draft-rods connected at their rear ends to the plow-beams and converging to an attachment with the said double-tree bolt, substantially as and for the purpose set forth.

2. In a plow-clevis for double plows, the

ISO

combination of plate G, having slots H, bolt bar 0, substantially as and for the purpose J, and hook K, substantially as and for the set forth. purpose set forth.

3. The combination of two plows, elevis- 5 plate G, connecting the forward ends of the witnesses:

plow-beams, braces B, disks D, jaw-piece WV. A. SEWARD, E, provided with pins, bolts F, and shackle- J. W. SEE. V 1

CONRAD SIEGORTNER; 

